Box a contains four white marbles and seven black marbles

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Box A contains four white marbles and seven black marbles. Box B contains five white marbles and six black marbles. An experiment consists of first selecting a marble at random from Box A. The marble is transferred to Box B and then a second marble is drawn from Box B. What is the probability that the first marble was white given that the second marble was white? (Round your answer to three decimal places.)

Reference no: EM13615904

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